<template lang="">
    <div>
        <h1>{{message}}</h1>
        <button @click="greet">greet</button>
    </div>
</template>
<script>
export default {
    data(){
        return{
            message:"Hello, 张!"
        }
    },
    methods:{
        greet(){
            this.message="Hello," +this.$attrs.name +"!"
        }
    }
    
}
</script>
<style lang="">
    
</style>